Elbow for respiratory mask



FIG. 1 is a front perspective view of an elbow for a respiratory mask according to an embodiment of our design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof with the right side view being a mirror image;

FIG. 7 is a front perspective view of an elbow for a respiratory mask according to an embodiment of our design;

FIG. 8 is a front view thereof;

FIG. 9 is a rear view thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a bottom view thereof; and,

FIG. 12 is a left side view thereof with the right side view being a mirror image.

The broken lines represent unclaimed subject matter and do not form a part of the claimed design. 

CLAIM The ornamental design for an elbow for respiratory mask, as shown and described. 